21K/42K specials
Designed for half and full marathon distances, TERRA is our most reinforced sock for 21K, 42K and trail running. Thanks to BLISTERGUARD™ technology and its skin-regenerating properties, it helps prevent blisters.
What socks to wear for a half marathon or marathon
Over long distances your foot sweats, swells and rubs for hours in the same spots: heel, toes and sole. That is when blisters appear most easily. For 21K and 42K, wear a sock you have already tested on long runs, with a cuff that stays put and protection in the friction zones.
- Anti-blister. BLISTERGUARD™: zones with chitin, a natural skin-regenerating, anti-blister fibre.
- Dry feet. DRYMODE™ keeps your feet dry by wicking moisture away faster.
- Hold. LOCKFIT™ keeps the cuff in place, without losing its shape or slipping down during training and races.
Terra or R10 Terra
They have the same technologies. The Terra has a mid cuff and the R10 Terra is an ankle sock. If you do not usually get blisters and prefer a thinner sock, the R15 also works for 21K: you will find it in running socks.
If you are running the Valencia Marathon, read our guide on what socks to wear for the Valencia Marathon.
Frequently asked questions
Which socks prevent blisters in a marathon?
Terra and R10 Terra, with BLISTERGUARD™ in the friction zones. Wear them on at least two long runs first.
Can I wear new socks on race day?
Better not. As with your shoes, test them on long runs first. If there is no time, run in the ones you know.
Mid cuff or ankle?
It is a matter of taste. A mid cuff protects your ankle from rubbing against the shoe; an ankle sock uses less fabric.
What size should I choose?
S 36-39, M 40-42, L 43-46 and XL 47-49 (EU shoe sizes), XL only in white and black. If you're between two sizes, choose the smaller one.